Question

1. The ratio of Fe3+ and Fe2+ in Fe0.9S1 is
(1) 0.28
(2) 0.5
(3) 2
(4) 4​

Answer 1

Answer:

0.5

Explanation:

fe3+fe2=5+fe0.9s1=0.5

Answer 2

Answer:

Answer is 0.28

Explanation:

well I am not completely sure but it will be something like this